Fish and Aquatic Life
This stream derives its water qualities from large springs located near its headwaters. Trout Brook, or locally known as Slawther Creek, is a major tributary to Wolf Creek and enters it just south of the town of Gratiot. The lower 2.3 miles was formerly designated as a Class III trout stream while the next 2.3 miles was a Class II trout stream (Wisconsin Trout Streams, 1980). With the most recent changes to the Wisconsin Trout Streams book (February, 2002), the lower 4.6 miles is now designated as a Class II stream. The stream continues to be stocked with brown trout. Attempts to encourage natural reproduction of brook trout prior to 1980 failed. The stream has not been monitored recently.
Author Aquatic Biologist
As its name signifies, Trout Brook is a trout stream. Its trout water qualities are derived from large springs which are located near its headwaters. About 25 percent of the base flow comes from its only tributary which enters one mile above its mouth. Slawther Branch is a major tributary to Wolf Creek and enters it just south of the town of Gratiot. In general, the principal land use in the watershed is agricultural. Firm pasture is the usual vegetative cover in the floodplain while the uplands are in crops, with some woods. Sport fishery assets include brown trout which are stocked annually. There are also some brook trout, smallmouth bass and an abundant population of forage fishes. Wildlife in the watershed includes deer, squirrels, rabbits, pheasants, Hungarian partridge and quail. Muskrats are present in and along the stream. The stream is accessible from three town roads and there are no lands along the stream in public ownership.
Trout Brook (Slawther Creek) T1N, R4E, Sections 9-5, Surface acres = 4.1, Miles = 4.6, Gradient = 37.0 feet per mile, Total alkalinity = 278 mg/l, Volume of flow = 4.0 cfs.
From: Piening, Ronald; Poff, Ronald; Threinen, C.W., 1967. Lake and Stream Classification Project. Surface Water Resources of Lafayette County, Wisconsin Department of Natural Resources, Madison, WI.
Author Aquatic Biologist
The Trout Brook also known as Slawther Creek (Mouth to Dunbarton Rd.) was assessed during the 2018 listing cycle; available biological data did not indicate impairment (i.e. no macroinvertebrate or fish Index of Biotic Integrity (IBI) scored in the "poor" condition category) based on the 2018 WisCALM listing thresholds for the Fish and Aquatic Life use. This water was meeting this designated use and was not considered impaired.
Author Amanda Smith
Trout Brook (Slawther Creek) (WBIC 918100) was assessed during the 2018 listing cycle; new biological (fish Index of Biotic Integrity (IBI) scores) sample data were clearly below the 2018 WisCALM listing thresholds for the Fish and Aquatic Life use. This water was meeting this designated use and was not considered impaired.
Author Ashley Beranek
Wisconsin has over 84,000 miles of streams, 15,000 lakes and milllions of acres of wetlands. Assessing the condition of this vast amount of water is challenging. The state's water monitoring program uses a media-based, cross-program approach to analyze water condition. An updated monitoring strategy (2015-2020) is now available.
Compliance with Clean Water Act fishable, swimmable standards are located in the Executive Summary of Water Condition in 2016 . See also 'monitoring' and 'projects'.
Wisconsin's Water Quality Standards provide qualitative and quantitative goals for waters that are protective of Fishable, Swimmable conditions [Learn more]. Waters that do not meet water quality standards are considered impaired and restoration actions are planned and carried out until the water is once again fishable and swimmable
Management goals can include creation or implementation of a Total Maximum Daily Load analysis, a Nine Key Element Plan, or other restoration work, education and outreach and more. If specific recommendations exist for this water, they will be displayed below online.
Monitoring the condition of a river, stream, or lake includes gathering physical, chemical, biological, and habitat data. Comprehensive studies often gather all these parameters in great detail, while lighter assessment events will involve sampling physical, chemical and biological data such as macroinvertebrates. Aquatic macroinvertebrates and fish communities integrate watershed or catchment condition, providing great insight into overall ecosystem health. Chemical and habitat parameters tell researchers more about human induced problems including contaminated runoff, point source dischargers, or habitat issues that foster or limit the potential of aquatic communities to thrive in a given area. Wisconsin's Water Monitoring Strategy was recenty updated.
Grants and Management Projects
|WBIC||Official Waterbody Name||Station ID||Station Name||Earliest Fieldwork Date||Latest Fieldwork Date||View Station||View Data|
|918100||Trout Brook||10029731||Trout Brook Station 1 at Dunbarton Rd||1/1/2015||1/1/2015||Map||Data|
|918100||Trout Brook||10016157||Trout Brook - Dunbarton Road||11/15/2002||7/30/2012||Map||Data|
|918100||Trout Brook||10029732||Trout Brook Station 2 (Upstream White Crossing Rd)||10/12/2010||1/1/2015||Map||Data|
Trout Brook is located in the Lower Pecatonica River watershed which is 134.23 mi². Land use in the watershed is primarily agricultural (86%), forest (8%) and a mix of suburban (5%) and other uses (2%). This watershed has 333.90 stream miles, 40.87 lake acres and 274.90 wetland acres.
Nonpoint Source Characteristics
This watershed is ranked Not Ranked for runoff impacts on streams, Not Ranked for runoff impacts on lakes and High for runoff impacts on groundwater and therefore has an overall rank of High. This value can be used in ranking the watershed or individual waterbodies for grant funding under state and county programs.However, all waters are affected by diffuse pollutant sources regardless of initial water quality. Applications for specific runoff projects under state or county grant programs may be pursued. For more information, go to surface water program grants.